Precise Revolution by Means of &Ldquo;chronometer &Rdquo;-&Ldquo;mechanical Tuned Filter”-&Ldquo;phonic Motor”
Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
doi 10.4294/zisin1948.7.1_25
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Date
January 1, 1954
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Seismological Society of Japan